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Contract OI history

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Feb 19, 2027 EXPIRATION

BSX $55.00 Call

BSX270219C00055000

Latest saved OI1,040Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BSX $55.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0405200 2026-10-02: 1,013 OI2026-10-05: 1,014 OI2026-10-06: 1,016 OI2026-10-07: 1,022 OI2026-10-08: 1,022 OI2026-10-09: 1,026 OI2026-10-13: 1,029 OI2026-10-14: 1,029 OI2026-10-15: 1,029 OI2026-10-16: 1,031 OI2026-10-21: 1,039 OI2026-10-23: 1,040 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BSX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,040+1
Oct 21, 20261,039+8
Oct 16, 20261,031+2
Oct 15, 20261,0290
Oct 14, 20261,0290
Oct 13, 20261,029+3
Oct 09, 20261,026+4
Oct 08, 20261,0220
Oct 07, 20261,022+6
Oct 06, 20261,016+2
Oct 05, 20261,014+1
Oct 02, 20261,013No prior observation